threatening to shoot people. the crowds, just a moment ago, everyone filling the front of this picture. all ran away and there were a lot of shots. tell us about what the clashes have been like. what are they shooting at them? >> reporter: what they're shooting, these are tear gas canisters, which are fired from a rifle. by and large compared to previous outbreaks of violence here in cairo, this one has been relatively peaceful. i mean, that may sound a little silly given the sort of images you see now, but in previous incidents, dozens of people consider killed, so this time, the police are only using tear gas, limited amounts of rubber bullets and as of yet, no live ammunition so even though as many as 300 people have been wounded, largely from inhalation of tear gas, fairly rough tear gas, no one has actually been killed.